Home / 21,894.95-30,215.06-12,463.50

Finding the Fourth Proportional to 21,894.95, 30,215.06 and 12,463.50

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Solution

The fourth proportional to 21,894.95, 30,215.06 and 12,463.50 is: 17,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.95 : 30,215.06 = 12,463.50 : x
  2. Step 2: Convert to fraction form
    21,894.95/30,215.06 = 12,463.50/x
  3. Step 3: Cross multiply
    21,894.95x = 30,215.06 × 12,463.50
  4. Step 4: Simplify right side
    21,894.95x = 376,585,337.99
  5. Step 5: Solve for x
    x = 376,585,337.99/21,894.95
  6. Step 6: Final answer
    x = 17,199.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.